 1 REM ***ROBERT L.
 2 REM ***COPPEDGE
 5 FOR SC=1TO32:PRINT:NEXT
 10 PRINT"MATH TUTOR":PRINT:PRINT
 15 PRINT"THIS TUTOR IS DESIGNED"
 18 PRINT"TO BE AN AID IN BASIC"
 20 PRINT"MATHEMATICS."
 21 PRINT
 25 PRINT"YOU HAVE THE FOLLOWING":PRINT"SUBJECTS TO CHOOSE FROM"
 28 PRINT
 30 PRINT"1) ADDITION":PRINT:PRINT"2) SUBTRACTION":PRINT
 35 PRINT"3) MULTIPLICATION":PRINT:PRINT"4) DIVISION"
 38 PRINT
 40 INPUT "WHICH WOULD YOU LIKE TO DO";X
 44 PRINT
 45 IF X>4 OR X<1 THEN 40
 50 INPUT "ENTER RANDOM SEED(ANY NUMBER)";Z1
 55 FOR SC=1TO32:PRINT:NEXT
 60 ON X GOTO 100,200,300,400
 100 PRINT"THIS IS ADDITION":FOR Z=1 TO 100
 105 W=INT(1000*RND(Z1)+1):V=INT(1000*RND(Z1)+1)
 110 Y=W+V
 111 S=0
 115 PRINT:PRINT"WHAT IS:"
 120 PRINTW;"+";V:INPUT U
 125 IF U=Y THEN 140
 126 S=1
 130 PRINT:PRINT"NO, I'M SORRY"
 135 INPUT "AGAIN";A$:IF A$="YES" OR A$="Y" THEN 115
 137 PRINT:PRINT"THE ANSWER IS";Y
 138 GOTO 160
 140 PRINT:PRINT"VERY GOOD!! PERFECT!!"
 145 IF S=0 THEN R(X)=R(X)+1
 160 PRINT:INPUT"DO YOU WANT ANOTHER ONE";A$
 165 IF A$="YES" OR A$="Y" THEN 180
 170 PRINT"YOU GOT ";R(X);" OUT OF ";Z
 175 GOTO 500
 180 PRINT:PRINT:PRINT:NEXT Z
 185 GOTO 170
 200 PRINT"THIS IS SUBTRACTION":FOR Z=1 TO 100
 205 W=INT(1000*RND(Z1)+1):V=INT(1000*RND(Z1)+1)
 210 Y=W-V
 211 S=0
 215 PRINT:PRINT"WHAT IS:":PRINT
 220 PRINTW;"-";V:INPUT U
 225 IF U=Y THEN 240
 226 S=1
 230 PRINT:PRINT"NO, I'M AFRAID THAT'S":PRINT"NOT IT.":PRINT
 233 PRINT"DO YOU WANT TO"
 235 INPUT"TRY AGAIN";A$:IFA$="Y" OR A$="YES" THEN 215
 236 PRINT
 237 PRINT"THE ANSWER IS ";Y
 238 PRINT:GOTO260
 240 PRINT:PRINT"BRAVO!! GOOD JOB!!"
 245 IF S=0 THEN R(X)=R(X)+1
 250 PRINT
 260 INPUT "DO YOU WANT ANOTHER ONE";A$
 265 IF A$="YES" OR A$="Y" THEN 280
 270 PRINT"YOU GOT ";R(X);" OUT OF ";Z
 275 GOTO 500
 280 PRINT:PRINT:PRINT:NEXT Z
 285 GOTO 270
 300 PRINT"THIS IS MULTIPLICATION":FOR Z=1 TO 100
 305 W=INT(20*RND(Z1)+1):V=INT(20*RND(Z1)+1)
 310 Y=W*V
 311 S=0
 315 PRINT"WHAT IS:"
 318 PRINT
 320 PRINTW;"*";V:INPUT U
 325 IF Y=U THEN 340
 326 S=1
 328 PRINT
 330 PRINT:PRINT"SORRY, BUT THAT'S NOT":PRINT"CORRECT. ":PRINT
 333 PRINT"DO YOU WANT TO TRY"
 335 INPUT "AGAIN";A$:IF A$="Y" OR A$="YES" THEN 315
 337 PRINT:PRINT"THE ANSWER IS";Y
 338 GOTO 360
 340 PRINT:PRINT"YOU GOT IT!!"
 344 PRINT
 345 IF S=0 THEN R(X)=R(X)+1
 360 PRINT:INPUT"DO YOU WANT ANOTHER ONE";A$
 365 IF A$="Y" OR A$="YES" THEN 380
 366 PRINT
 370 PRINT"YOU GOT ";R(X);" OUT OF ";Z
 375 GOTO 500
 380 PRINT:PRINT:PRINT:NEXT Z
 385 GOTO 370
 400 PRINT"THIS IS DIVISION":FOR Z=1 TO 100
 405 W=INT(150*RND(Z1)+1):V=INT(75*RND(Z1)+1)
 410 Y=W/V:IF Y=INT(Y) THEN 414
 411 GOTO 405
 414 S=0 
 415 PRINT:PRINT"WHAT IS:"
 420 PRINTW;"/";V:INPUT U
 425 IF Y=U THEN 440
 426 S=1
 428 PRINT
 430 PRINT"NOT QUITE RIGHT. DO YOU":PRINT"WANT ANOTHER CRACK "
 435 INPUT "AT IT";A$:IF A$="Y" OR A$="YES" THEN 415
 436 PRINT
 437 PRINT"THE ANSWER IS: ";Y
 438 PRINT:GOTO460
 439 PRINT
 440 PRINT:PRINT"PERFECT!!"
 444 PRINT
 445 IF S=0 THEN R(X)=R(X)+1
 450 PRINT
 460 INPUT "DO YOU WANT ANOTHER ONE";A$
 462 PRINT
 465 IF A$="Y" OR A$="YES" THEN 480
 470 PRINT"YOU GOT ";R(X);" OUT OF ";Z
 475 GOTO 500
 480 PRINT:PRINT:PRINT:NEXT Z
 482 PRINT
 485 GOTO 470
 500 PRINT:PRINT"WOULD YOU LIKE ANOTHER"
 505 INPUT"CATEGORY";A$
 510 IF A$="Y" OR A$="YES" THEN 30
 600 END
